William stanifoeth



W STANIFORTH.

Revolving Pocket-Knife.

N0. 159,286. Patented Feb.2,l875.

Wt ass 68 THE GRAPHIC C(LFHQTO'LITILQQE- l PAM FLA, KY.

UNITED STATES OFFICE.

WILLl AM STANIFORTH, OF SHEFFIELD, ENGLAND, ASSIGNOR TO \VILLIAM H.SMITH AND WILLIAM G. HALL, OF SAME PLACE.

. IMPROVEMENT IN REVOLVING POCKET-KNIVES.

Specification forming part of Letters Patent No. 159,286, datul February2,1875; application filed December 28, 1874.

To all whom it may concern:

Be it known that 1, WILLIAM STANIFORTH, designer, of Sheffield, in thecounty of York, England, have invented a new and useful Improvement inRevolving PocketKnives; and I do declare that the followingspecification is an exact description thereof, and fully illustrated inthe accompanying drawings.

Figure 1 is a view representing the revolving knife closed ready for thepocket. Fig. 2 is a view, showing the back of the blades in knife B, andready to be opened out from the case A. Fig. 3 represents the knife withits blades opened out of the case. Fig. 4 represents a longitudinalsection of the knife. Fig. 5 is a view of the case in which the knife Bturns. Fig. 6 represents the knife removed from the case. Fig. 7represents a cap or shield inclosin g the revolving movement. Fig. 8represents a bolt. Fig. 9 is a view of socket, in which the bolt shownin Fig. 8 is inserted. Fig. 10 represents a cap or shield covering thesocket shown in Fig. 9. Fig. 11 is a sectional view of Figs. 8, 9, and10 in position. Fig. 12 is a sectional view of case A and cap or shield0, showing the socket d as secured to the case A. Fig. 13 shows the cap0 in section, and the socket d with its slots 11 i, and the pin kpassing through them. Fig. 14 is a cross-section of Fig. 13 cuttingthrough the slots 1' i; also showing the pin it resting in them.

The object of my invention is to make a pocket-knife that may be carriedin the pocket, and not get filled in between the blades and othercrevices with sweat and dirt, as is now the case with all other knivesheretofore in use.

The following is a complete and full description of my invention and theconstruction thereof.

' Like letters designate similar parts in all of the figures.

Fig. l is a view of my knife closed ready for the pocket. A is the outercase, covering the knife B. The outer case is made of any materialsuitable for the purpose, and always of cylindrical form, as shown. Thiscase has an opening upon its side, as shown in the figures. This openingis for the purpose of exposing the blades of the knife B, and allowingthem to be opened, as seen in Fig. 3. The case A, with its extension orcap 0, is used as a handle to the knife. The cap 0 is also employed torevolve the knife B within the case A.

Fig. 2 is the same view of the case A, as seen in Fig. 1, with theblades of the knife B exposed, which is done by a quarter turn ormovement of the cap 0.

Fig. 3 is a view, showing the blades of the knife B opened out of thecase A.

Fig. 4 is a longitudinal section of the knife B, case A, and cap orshield O with its internal movement.

Figs. 5, 6, and 7 show the case A, knife B, and cap 0 as being ready toput together.

Figs. 8 and 9 represent the moving and working parts within the shieldO. The bolt h, Fig. 8, is provided with a hole, 70, and a projection orkey, 0, which fits into a slit in the knife B at 0. This bolt h isinserted into the socket cl, Fig. 9, far enough to allow the hole is tocorrespond with the slots 6 i, and rest against the spring a. Thissocket d is inserted in the cap 0 as far as the flange 9, allowing thepin 70 to pass through the bolt h, socket d, and cap 0.

Fig. 11 shows the three last-named parts in section, and in theirrelative positions.

Fig. 12 is a sectional representation of the outer case A and the cap 0,exposing the socket d, and showing the form of the SlOlSi therein. Thesloti is made in the form as shown in the Figs. 9 and 12. There are twoof them, being upon opposite sides of the socket d. The length of theslots determine the movement of the knife B within the case A. At eachend of these slots there are two short slots or recesses communicatingwith the long slots. These short slots or recesses are for a doublepurposefirst, to hold the knife in whatever position required; secondly,they allow a slight end movement of the cap 0 and bolt h. This endmovement ceases when the pin it strikes the opposite sides of the longslots 2' 5, thus relieving or disengaging the pin from the receiver, andallowing a quarter-turn movement of the cap 0, which revolves the knifeB from the position shown in Fig. 1 to that shown in Fig. 2. After thismovement is effected the pin in is forced into the end recesses, andheld there by means of the spiral spring n, or its equivalent, thusevenly holding the knife to the position, as shown in Fig. 2.

The end movement is shown inFigs. 2 and 13, it being the distance shownbetween the case A and cap 0, or flange g and cap 0.

The bolt h, Fig. 8, within the socket d is secured to the cap 0 by meansof the pin is; consequently its movement is the same, and at the sametime. This bolt h imparts its movement to the knife B by means of theprojection 0, fitting in the slit 0 in the end of theknife B. The socketd is provided with a flange, g. This flange fits within the case A at m,and is securely fastened thereto by soldering or otherwise, making thesocket d and case A one continuous piece. Before these parts aresoldered together put the knife B into the case A, the spring a and bolth into the socket d. After this is done solder the flange 9 to the caseA at 122, after which put on the cap or shield O, and pass the pinkthrough the cap 0, socket d, and bolt h, and then rivet the pin to itsplace, thus leaving the knife ready for operation.

What I claim as my invention is-- 1. The blade B and handle revolving inan outer case, for the purposes described and set forth.

2. The spring a, with the bolt h and projection 0, in combination withthe slit 0, or their equivalents, substantially as and for the purposesset forth.

3. The slotsz' and i, in combination with the spring a and bolt 70, ortheir equivalents, substantially as and for the purposes set forth.

WILLIAM STANIFORTH.

W itncsses:

J AS. DRUBBLE, JAS. E. HALL,

Both of Slwflield.

